Long range low frequency resonator and materials

Abstract

Transmission of power at low frequencies, e.g. less than 1 MHz The power can be transmitted in various ways, using different structures included stranded wire such as Litz wire. The inductor can also use cores of ferrites for example. Passive repeaters can also be used.

Description

[0001] This application claims priority to Provisional Application No. 60 / 955,598, filed August 13, 2007, which is incorporated herein by reference in its entirety. Background technique [0002] It is desirable to transfer electrical energy from a source to a destination without using wires to direct the electromagnetic field. Difficulties with previous attempts have been low efficiency coupled with insufficient amounts of delivered power. [0003] Wireless power transfer is described in our prior and provisional applications including, but not limited to, Serial No. 12, filed January 22, 2008, entitled "Wireless Apparatus and Methods." / 018,069, the entire disclosure of which is incorporated herein by reference. [0004] The system may use transmit and receive antennas, which are preferably resonant antennas that generally resonate within, for example, 10% resonance, 15% resonance or 20% resonance. The antenna is preferably of small size to allow it to fit into a mobile han...

AI Technical Summary

Problems solved by technology

Difficulty with previous attempts is low efficiency coupled with insufficient amount of delivered power

Images